Isoperibol calorimeters (those operating in a constant-temperature environment) are used to measure the power and energy in laser beams relative to electrical standards. The derivation of the basic formula is reviewed.Two methods are presented for analyzi Topics: Calorimetry., Lasers.
byMcSparron, Donald A.; Douglas, C. A.; Badger, H. L.
The output of pulsed lasers may be measured with reasonable accuracy by modifications of established radiometric methods. The receiver, thermopile or phototube, is used ballistically. It is calibrated by an incandescent-lamp standard of spectral irradianc Topics: Lasers., Radioactivity--Measurement.
byJennings, Donald Alfred, 1930-; West, E. D.; Evenson, K. M.; Rasmussen, A. L.; Simmons, W. R.
Calorimeters for measuring the output energy of pulsed ruby and neodymium glass lasers have been built and calibrated.The absorbing medium is an aqueous solution of CuSO4. Calibration of *laser energy detectors has an estimated uncertainty of plus or minu Topics: Calorimetry., Gas lasers.
byKessler, Karl G.; Passaglia, Elio; Winogradoff, Nicholas N.
A brief report is presented on research in the areas of laser standards and laser materials now in progress at the National Bureau of Standards.Included are the measurement of the power and energy output of lasers, their near and far field patterns and t Topics: Lasers--Standards--Research--United States., Laser materials--Research--United States.
The booklet presents descriptions and drawings of five devices that embody interesting and unusual solutions to problems frequently encountered in their respective fields.The devices are:Autosort - An automatic collating and sorting machine; Optical heter Topics: Information storage and retrieval systems., Lasers., Pumping machinery., Automobiles--Seat belts.